Why do anda think Mattel didn't made an Isla doll?

Director Zeke Norton, who directed Barbie: Princess Charm School, stated that the original story didn't include Isla. Her role was supposed to be Delancy's. Usually the merchandise for the Filem were made early into the production, thus when the plot was changed in the last minute, they didn't have time to make a Isla doll. That's also why Delancy was described in the back cover of the DVD as one of Blair's friends. They simply didn't have enough time to fix that.

Hope this answered your soalan and clarified any possible confusion about the movie.

I know why but it still sucks because they could still make one after and it’s been years so why is their still not one? They honestly should have made one sejak now. Isla should have a doll for uniform dress and mini doll.